“Trimmed” NSPs or XCIs for this title—they break co-op functionality. Use NSC_Builder to check your file integrity.

The best to use after the 1.0.5 resolution boost? Specific DLC content unlocked with this version?

Do not install over a corrupted base. If you previously tried to install v1.0.3 or v1.0.4 and it failed:

: Optimization helps the game maintain its roughly 1.3 GB footprint for the update data alone, ensuring it doesn't overly tax your microSD card. How to Ensure Your Update is Working

, adding five major DLC packs that were previously missing. This update is essential for players who own the physical cartridge, as it is required to access content like the Key Content in Update 1.0.5